This is a random question in between history and english. why did anne frank and her family hide if they are germans? i do know that they were reformed jews (adheres to a system of religious worship adapted from orthodox judaism to meet the demands of contemporary life, frequently simplifying or rejecting traditional religious law and custom.) but i'm confused why they hide if they are germans.

Because the Germans still saw them as a threat.  They were scared if the Nazis  caught them they would kill them.

Explanation:

after Adolf Hitler and the Nazis came to power there in 1933 and made life increasingly difficult for Jews. ... The Franks were discovered in 1944 and sent to concentration camps; only Anne's father survived. The thing is that they didn’t felt safe there and they were being threatened.

a change of venue is the legal term for moving a trial to a new location. a change of venue request because venue is improper means that the removing defendant believes that the case may not be in that venue because it is improper under procedural rules.

i think it was   tsar alexander ii